Which hair pattern is most commonly found in childhood and adolescence?

The rounded hair pattern is most commonly observed in childhood and adolescence because it reflects the natural growth phase of hair during these stages of development. In younger individuals, the hair follicles are often producing hair that is finer and softer, which tends to create a rounded appearance around the hairline and parting. This rounded pattern is indicative of a more juvenile hair growth stage where the hair naturally grows outward and can be styled in a way that emphasizes fullness. As individuals move into adulthood, hair patterns may shift due to various factors, including genetic predispositions, hormonal changes, and environmental influences, leading to different patterns such as recessed or square hairlines more commonly seen in older age groups.